CPC Subgroup Additional Only
B81B 2201/02 Sensors
Full Title
Specific applications of microelectromechanical systems > Sensors
Filing statistics
CPC B81B 2201/02 belongs to the parent subclass B81B, which recorded 28,559 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,310 in 2013 to 2,198 in 2023 (-5%), peaking at 2,988 applications in 2018. The most active applicants in class B81 are ROBERT BOSCH (1,976 applications), TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (788 applications) and INFINEON TECHNOLOGIES (759 applications).
Source: EPO PATSTAT, worldwide filings
10 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B81B 2201/0207 Bolometers
- B81B 2201/0214 Biosensors; Chemical sensors
- B81B 2201/0221 Variable capacitors
- B81B 2201/0228 Inertial sensors
- B81B 2201/0257 Microphones or microspeakers
- B81B 2201/0264 Pressure sensors
- B81B 2201/0271 Resonators; ultrasonic resonators
- B81B 2201/0278 Temperature sensors
- B81B 2201/0285 Vibration sensors
- B81B 2201/0292 Sensors not provided for in B81B2201/0207 - B81B2201/0285
Top Applicants
Top 10 applicants by patent filingsfor class B81, 2013–2023, worldwide · Source: EPO PATSTAT
- ROBERT BOSCH DE 1,976
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 788
- INFINEON TECHNOLOGIES DE 759
- CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 555
- STMICROELECTRONICS IT 526
- INVENSENSE US 430
- MURATA MANUFACTURING COMPANY JP 418
- SEIKO EPSON CORPORATION 338
- CHINESE ACADEMY OF SCIENCES 338
- FRAUNHOFER DE 297